MIL-DTL-24643C
3.4.8.1.2 Telephone identification code. Conductor identification code for telephone cables shall be as follows:
Color or conductor no.
Color
Color or conductor no.
Color
1
Black
7
Brown
2
White
8
Gray
3
Red
9
Yellow
4
Green
10
Purple
5
Orange
11
Tan
6
Blue
12
Pink
The pairing of conductors for forming pairs shall be as follows:
No. 1 paired with nos. 2 thru 12 for first 11 pairs
No. 2 paired with nos. 3 thru 12 for next 10 pairs
No. 3 paired with nos. 4 thru 12 for next 9 pairs
No. 4 paired with nos. 5 thru 12 for next 8 pairs
No. 5 paired with nos. 6 thru 12 for next 7 pairs
No. 6 paired with nos. 7 thru 12 for next 6 pairs
No. 7 paired with nos. 8 thru 12 for next 5 pairs
No. 8 paired with nos. 9 thru 12 for next 4 pairs
No. 9 paired with nos. 10 thru 12 for next 3 pairs
No. 10 paired with nos. 11 thru 12 for next 2 pairs
No. 11 paired with no. 12
3.4.8.1.3 Special identification code. Special identification code shall be in accordance with the following:
Color or conductor no.
Color
Color or conductor no.
Color
1
Black
7
Brown
2
White
8
Gray
3
Red
9
Yellow
4
Green
10
Purple
5
Orange
11
Tan
6
Blue
12
Pink
3.4.8.1.4 Letter identification code. Letter identification code shall consist of the letters A, B, C, and D printed
in block type and with black, white, red, and green ink respectively.
3.4.8.1.5 Twisted pair identification code. This code shall consist of the numbers in sequence running from 1
through the number corresponding to the total number of twisted pairs in the cable. Both conductors in each pair
shall be numbered the same, denoting the sequence number of the pair. Distinction between the two conductors is
provided by different colored insulation. Conductors of a cable with a single pair need not be numbered.
3.4.8.1.6 Twisted triad identification code. This code shall consist of the numbers in sequence running from 1
through the number corresponding to the total quantity of twisted triads in the cable. Three conductors shall be
numbered the same, denoting the sequence number of the triad; distinction between the three conductors is provided
by different colored insulation. Conductors of a cable with a single triad need not be numbered.
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